Grobet USA Swiss Pattern 5-1/2" Half-Round Needle File – Cut 0, 2 & 4
Designed for precise shaping and finishing of both flat and curved surfaces, these Grobet USA Swiss Pattern half-round needle files combine a flat face with a rounded face for versatile precision filing.
The half-round profile tapers in both width and thickness toward the point, making it easy to work inside curves, rounded openings, concave surfaces, and confined areas. Both working surfaces are double cut, allowing controlled material removal on flat surfaces as well as curved profiles.
At 5-1/2" (140mm) overall, these files provide additional reach while maintaining the control needed for detailed bench work. Choose Cut 0, Cut 2, or Cut 4 depending on the amount of material removal and surface finish required.
Features & Benefits
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Half-Round Profile: Combines a flat face and rounded face for working on both flat and curved surfaces.
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Tapered Shape: Narrows in width and thickness toward the point for access to small openings, inside curves, and confined areas.
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Double-Cut Working Surfaces: Provides efficient, controlled material removal.
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Three Cut Options: Choose Cut 0, 2, or 4 for progressive shaping, refinement, and finishing.
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5-1/2" Overall Length: Offers a comfortable balance of reach and precision.
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2-1/2" Cutting Length: Provides a practical working area for detailed filing.
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Round Knurled Handle: Integral handle provides a secure grip and precise control without requiring a separate file handle.
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Swiss Pattern Precision: Designed for accurate filing of small components and detailed surfaces.
Specifications
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Brand: Grobet USA
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File Type: Swiss Pattern Needle File
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Profile: Half-Round
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Overall Length: 5-1/2" (140mm)
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Cutting Length: 2-1/2" (64mm)
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Width: 13/64" (5.0mm)
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Thickness: 1/16" (1.7mm)
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Cut Type: Double cut
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Handle: Round knurled
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Available Cuts: 0, 2, and 4
Cut Options
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Cut 0 – 31.519: Coarser cut for faster material removal and initial shaping.
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Cut 2 – 31.520: Medium cut for general-purpose precision filing and controlled refinement.
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Cut 4 – 31.522: Fine cut for detailed refinement and smoother finishing.
Ideal For
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Jewelry making and repair
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Filing inside curves and rounded openings
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Shaping concave surfaces
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Filing small flat surfaces
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Watch and clock work
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Precision metalworking
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Small component fabrication
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Model making
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Toolmaking
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Detailed work under magnification
Frequently Asked Questions
What is a half-round needle file used for?
A half-round needle file combines a flat face with a rounded face, making it useful for filing flat surfaces, inside curves, concave areas, rounded openings, and other detailed shapes.
What is the difference between Cut 0, Cut 2, and Cut 4?
Cut 0 provides the coarsest cutting action of the three for faster shaping and material removal. Cut 2 provides a medium cutting action for general refinement, while Cut 4 provides finer cutting for detailed finishing.
Which cut should I choose for initial shaping?
Cut 0 is the best choice when faster material removal or initial shaping is needed.
Which cut is best for general-purpose precision filing?
Cut 2 offers a useful balance between material removal and surface refinement.
Which cut should I choose for finer finishing?
Cut 4 is the finest option offered on this page and is best suited for detailed refinement and smoother finishing.
Are both sides of the file usable?
Yes. Both the flat and rounded working surfaces are double cut.
Does the file taper?
Yes. The half-round profile tapers in both width and thickness toward the point, allowing access to smaller openings and confined areas.
How long are these files?
Each file measures 5-1/2" (140mm) overall with a 2-1/2" (64mm) cutting portion.
Are all three cuts included with one purchase?
No. Cut 0, Cut 2, and Cut 4 are individually selectable variants. Choose the cut that best matches the amount of material removal and finish required.
